140973893 has 4 divisors (see below), whose sum is σ = 141400128. Its totient is φ = 140547660.

The previous prime is 140973827. The next prime is 140973919. The reversal of 140973893 is 398379041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140973893 - 2¹⁶ = 140908357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140973803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212621 + ... + 213282.

It is an arithmetic number, because the mean of its divisors is an integer number (35350032).

Almost surely, 2^140973893 is an apocalyptic number.

It is an amenable number.

140973893 is a deficient number, since it is larger than the sum of its proper divisors (426235).

140973893 is an equidigital number, since it uses as much as digits as its factorization.

140973893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426234.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 140973893 is about 11873.2427331374. The cubic root of 140973893 is about 520.4506608481.

The spelling of 140973893 in words is "one hundred forty million, nine hundred seventy-three thousand, eight hundred ninety-three".